Finding the Fourth Proportional to 715,125.60, 986,560.56 and 443,121.12
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Solution
The fourth proportional to 715,125.60, 986,560.56 and 443,121.12 is: 611,313.34
Step by Step Solution
- Step 1: Write the proportion equation
715,125.60 : 986,560.56 = 443,121.12 : x - Step 2: Convert to fraction form
715,125.60/986,560.56 = 443,121.12/x - Step 3: Cross multiply
715,125.60x = 986,560.56 × 443,121.12 - Step 4: Simplify right side
715,125.60x = 437,165,820,295.03 - Step 5: Solve for x
x = 437,165,820,295.03/715,125.60 - Step 6: Final answer
x = 611,313.34
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.